1215440

1,215,440 is an even composite number composed of three prime numbers multiplied together.

What does the number 1215440 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

1215440 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 1215440:

2⁴ × 5 × 15193

(2 × 2 × 2 × 2 × 5 × 15193)

See below for interesting mathematical facts about the number 1215440 from the Numbermatics database.

Names of 1215440

Cardinal: 1215440 can be written as One million, two hundred fifteen thousand, four hundred forty.

Scientific notation

Scientific notation: 1.21544 × 10⁶

Factors of 1215440

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 15200

Divisors of 1215440

Number of divisors d(n): 20
Complete list of divisors:
1 2 4 5 8 10 16 20 40 80 15193 30386 60772 75965 121544 151930 243088 303860 607720 1215440
Sum of all divisors σ(n): 2826084
Sum of proper divisors (its aliquot sum) s(n): 1610644
1215440 is an abundant number, because the sum of its proper divisors (1610644) is greater than itself. Its abundance is 395204

Bases of 1215440

Binary: 100101000101111010000₂
Hexadecimal: 0x128BD0
Base-36: Q1U8

Squares and roots of 1215440

1215440 squared (1215440²) is 1477294393600
1215440 cubed (1215440³) is 1795562697757184000
The square root of 1215440 is 1102.4699542391
The cube root of 1215440 is 106.7196785107

Scales and comparisons

How big is 1215440?

1,215,440 seconds is equal to 2 weeks, 1 hour, 37 minutes, 20 seconds.
To count from 1 to 1,215,440 would take you about three weeks!

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 1215440 cubic inches would be around 8.9 feet tall.

Recreational maths with 1215440

1215440 backwards is 0445121
The number of decimal digits it has is: 7
The sum of 1215440's digits is 17
More coming soon!

Copy this link to share with anyone:

Share this page on social media:

Link to this page

HTML: To link to this page, just copy and paste the link below into your blog, web page or email.

<a href="https://numbermatics.com/n/1215440/?utm_source=shared">Number 1215440 - Facts about the integer</a>

BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:

[url=https://numbermatics.com/n/1215440/?utm_source=shared]Number 1215440 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 1215440 - Facts about the integer". Numbermatics.com. 2024. Web. 2 May 2024.

APA style:
Numbermatics. (2024). Number 1215440 - Facts about the integer. Retrieved 2 May 2024, from https://numbermatics.com/n/1215440/

Chicago style:
Numbermatics. 2024. "Number 1215440 - Facts about the integer". https://numbermatics.com/n/1215440/

The information we have on file for 1215440 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

Keywords: Divisors of 1215440, math, Factors of 1215440, curriculum, school, college, exams, university, Prime factorization of 1215440, STEM, science, technology, engineering, physics, economics, calculator, one million, two hundred fifteen thousand, four hundred forty.